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CVE-2018-5173 Details

Description

The filename appearing in the "Downloads" panel improperly renders some Unicode characters, allowing for the file name to be spoofed. This can be used to obscure the file extension of potentially executable files from user view in the panel. Note: the dialog to open the file will show the full, correct filename and whether it is executable or not. This vulnerability affects Firefox < 60.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://bugzilla.mozilla.org/show_bug.cgi?id=1438025	CVE	Issue TrackingPermissions RequiredVendor Advisory
https://usn.ubuntu.com/3645-1/	CVE	Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2018-11/	CVE	Vendor Advisory
http://www.securityfocus.com/bid/104139	CVE	Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1040896	CVE	Third Party AdvisoryVDB Entry
https://bugzilla.mozilla.org/show_bug.cgi?id=1438025	[email protected]	Issue TrackingPermissions RequiredVendor Advisory
https://usn.ubuntu.com/3645-1/	[email protected]	Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2018-11/	[email protected]	Vendor Advisory
http://www.securityfocus.com/bid/104139	[email protected]	Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1040896	[email protected]	Third Party AdvisoryVDB Entry

see all 10 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-20	Improper Input Validation	[email protected]

Affected Products

Product	Versions
canonical ubuntu linux	14.04 16.04 17.10 18.04
CPE cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts::: cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts::: cpe:2.3:o:canonical:ubuntu_linux:17.10:::::::* cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts::: Remediation No remediation found in references.
mozilla firefox	< 60.0
CPE cpe:2.3:a:mozilla:firefox:::::::: Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Aug 3, 2018	Initial Analysis	[email protected]
Jun 13, 2018	CVE Modified	[email protected]